Transmitter/receiver modem



FIG. 1 is a front, right side perspective view a data transmitter/receiver modem showing my new design.

FIG. 2 is a rear left side perspective view thereof.

FIG. 3 is a front elevational view thereof.

The bottom of the modem is flat and unornamented. 

The ornamental design for transmitter/receiver modem, substantially as shown and described. 